Documentation: Kludge for decent "mod" operation

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Signed-off-by: Horst H. von Brand <[email protected]>

Author: vonbrand

doc/bn.tex

@@ -2604,13 +2604,13 @@ \section{Function Macros}
 \begin{alltt}
 bool mp_iseven(const mp_int *a)
 \end{alltt}
-Checks if $a = 0 mod 2$
+Checks if $a = 0 \;\mathrm{mod}\; 2$
 
 \index{mp\_isodd}
 \begin{alltt}
 bool mp_isodd(const mp_int *a)
 \end{alltt}
-Checks if $a = 1 mod 2$
+Checks if $a = 1 \;\mathrm{mod}\; 2$
 
 \index{mp\_isneg}
 \begin{alltt}